| 摘要 |
PROBLEM TO BE SOLVED: To provide a pattern display device easy to maintain at a low cost. SOLUTION: A game board control device and a pattern control device are integrated, and a liquid crystal device 65 and a backlight device 45 are removably fitted to the pattern display device window frame 21 of a pattern display device by a removing lever 58. The backlight device 45 using a high voltage often fails, and the backlight device 45 can be simply replaced by one action of the removing lever 58. The backlight device 45 is easily replaced, the pattern display device can be reutilized, and it can contribute to the reduction of social industrial wastes. |
